   "Sent as an agent action, stops a directory-watching agent."
   [state]
   (remove-watch *agent* ::watch)
-  false)
+  nil)
 
 (defn ns-mod-time-agent
   "Creates an agent that monitors namespaces for changes to their

                    (Thread/sleep delay)
                    (send *agent* upd)
                    (ns-mod-times dir)))]
    (doto (agent true)
      (send updater))))

(defn- newer-namespaces [older newer]

    :delay - time (ms) between directory scans"
  [d & options]
  (let [{:keys [reporter] :or {reporter spec-report}} options]
    (apply watch-dir d
           (fn [names] 
             (reporter (run-spec names :reload)))
           options)))
